InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
If two solid hemispheres of same base radius r are joined together along their bases, them curved surface area of the this new solid isA. `4pir^(2)`B. `6pir^(2)`C. `3pir^(2)`D. `8pir^(2)` |
|
Answer» Correct Answer - A Because curved surfce area of a hemisphere is `2pir^(2)` and here, we joint two solid hemispheres along their bases of radius r, form which we get solid sphere. Hence, the curved surface area a new solid `= 2 pi r^(2) + 2pir^(2) = 4pir^(2)` |
|